Wind Power 2.0
8 years & up. Explore this amazing, free source of renewable energy and store the electricity you generate for use in practical applications! The wind spins the turbine, which turns an electric generator, which in turn charges your rechargeable AA batteries. Then use those wind-charged batteries to power the model vehicles you build! The six models include a glider, sail car, jet car, tractor, racecar, and tricycle. Also includes two styles of wind turbine blades, a gearbox with three different gear ratios for experimenting and a 40-page color instruction book. 133 building pieces.